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- PDB-2e4u: Crystal structure of the extracellular region of the group II met... -

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Basic information

Entry
Database: PDB / ID: 2e4u
TitleCrystal structure of the extracellular region of the group II metabotropic glutamate receptor complexed with L-glutamate
ComponentsMetabotropic glutamate receptor 3
KeywordsSIGNALING PROTEIN / G-protein-coupled receptor / neuron / central nerve system
Function / homology
Function and homology information


Class C/3 (Metabotropic glutamate/pheromone receptors) / group II metabotropic glutamate receptor activity / G protein-coupled glutamate receptor signaling pathway / astrocyte projection / G alpha (i) signalling events / cellular response to stress / postsynaptic modulation of chemical synaptic transmission / regulation of synaptic transmission, glutamatergic / calcium channel regulator activity / sensory perception of pain ...Class C/3 (Metabotropic glutamate/pheromone receptors) / group II metabotropic glutamate receptor activity / G protein-coupled glutamate receptor signaling pathway / astrocyte projection / G alpha (i) signalling events / cellular response to stress / postsynaptic modulation of chemical synaptic transmission / regulation of synaptic transmission, glutamatergic / calcium channel regulator activity / sensory perception of pain / modulation of chemical synaptic transmission / presynaptic membrane / scaffold protein binding / gene expression / dendritic spine / postsynaptic membrane / neuron projection / postsynaptic density / axon / glutamatergic synapse / plasma membrane
Similarity search - Function
GPCR, family 3, nine cysteines domain / GPCR, family 3, metabotropic glutamate receptor 3 / Tumor Necrosis Factor Receptor, subunit A; domain 2 / GPCR, family 3, metabotropic glutamate receptor / : / G-protein coupled receptors family 3 signature 1. / G-protein coupled receptors family 3 signature 2. / GPCR, family 3, nine cysteines domain / GPCR, family 3, nine cysteines domain superfamily / Nine Cysteines Domain of family 3 GPCR ...GPCR, family 3, nine cysteines domain / GPCR, family 3, metabotropic glutamate receptor 3 / Tumor Necrosis Factor Receptor, subunit A; domain 2 / GPCR, family 3, metabotropic glutamate receptor / : / G-protein coupled receptors family 3 signature 1. / G-protein coupled receptors family 3 signature 2. / GPCR, family 3, nine cysteines domain / GPCR, family 3, nine cysteines domain superfamily / Nine Cysteines Domain of family 3 GPCR / G-protein coupled receptors family 3 signature 3. / GPCR, family 3, conserved site / GPCR, family 3 / G-protein coupled receptors family 3 profile. / GPCR family 3, C-terminal / 7 transmembrane sweet-taste receptor of 3 GCPR / Response regulator / Receptor, ligand binding region / Receptor family ligand binding region / Periplasmic binding protein-like I / Ribbon / Rossmann fold / 3-Layer(aba) Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
GLUTAMIC ACID / Metabotropic glutamate receptor 3
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.35 Å
AuthorsMuto, T. / Tsuchiya, D. / Morikawa, K. / Jingami, H.
CitationJournal: Proc.Natl.Acad.Sci.Usa / Year: 2007
Title: Structures of the extracellular regions of the group II/III metabotropic glutamate receptors
Authors: Muto, T. / Tsuchiya, D. / Morikawa, K. / Jingami, H.
History
DepositionDec 17, 2006Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Feb 27, 2007Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 1.3Jul 29, 2020Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Structure summary
Category: chem_comp / entity ...chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / struct_conn / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.4Nov 10, 2021Group: Database references / Structure summary / Category: chem_comp / database_2 / struct_ref_seq_dif
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details
Revision 1.5Oct 25, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.6Nov 13, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Metabotropic glutamate receptor 3
B: Metabotropic glutamate receptor 3
hetero molecules


Theoretical massNumber of molelcules
Total (without water)126,9716
Polymers126,2352
Non-polymers7374
Water4,936274
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)84.005, 97.469, 108.068
Angle α, β, γ (deg.)90.00, 92.95, 90.00
Int Tables number4
Space group name H-MP1211
DetailsThe asymmetric unit contains one biological homodimer.

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Components

#1: Protein Metabotropic glutamate receptor 3 / mGluR3 / group II metabotropic glutamate receptor subtype 3


Mass: 63117.297 Da / Num. of mol.: 2 / Fragment: Extracellular region / Mutation: N414Q, N439Q
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Cell line (production host): HIGH FIVE / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P31422
#2: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#3: Chemical ChemComp-GLU / GLUTAMIC ACID


Type: L-peptide linking / Mass: 147.129 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C5H9NO4
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 274 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3.5 Å3/Da / Density % sol: 64.84 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 5
Details: 0.2M NH4H2PO4, 2.5-5.0% PEG 6000, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL41XU / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Dec 1, 2004
RadiationMonochromator: SI / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.35→100 Å / Num. all: 72540 / Num. obs: 72540 / % possible obs: 99.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.7 % / Rmerge(I) obs: 0.079 / Rsym value: 0.067 / Net I/σ(I): 6.9
Reflection shellResolution: 2.35→2.48 Å / Rmerge(I) obs: 0.52 / Mean I/σ(I) obs: 1.4 / % possible all: 100

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Processing

Software
NameVersionClassification
ADSCQuantumdata collection
AMoREphasing
CNSrefinement
MOSFLMdata reduction
CCP4(SCALA)data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1EWK

1ewk


Resolution: 2.35→20 Å / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.2673 5155 -RANDOM
Rwork0.2379 ---
all0.24 72364 --
obs0.24 72364 99.9 %-
Refinement stepCycle: LAST / Resolution: 2.35→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms8141 0 48 274 8463
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.00726
X-RAY DIFFRACTIONc_angle_deg1.41573
LS refinement shellResolution: 2.35→2.43 Å / Rfactor Rfree: 0.371 / Rfactor Rwork: 0.3337

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